We have compiled a list of manufacturers, distributors, product information, reference prices, and rankings for non-return valve.
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non-return valve Product List and Ranking from 20 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

non-return valve Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

  1. 宮田工業所 名古屋工場、栃木工場、福岡工場、三重工場、名古屋営業所、宇都宮営業所、福岡営業所、本社 Aichi//Manufacturing and processing contract
  2. アスタム Kanagawa//Machine elements and parts
  3. null/null
  4. 4 日本マイクロMIMホールディングス 本社 Osaka//Chemical
  5. 5 東和化学 三木工場 Hyogo//Rubber products
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non-return valve Product ranking

Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.

  1. Swing Check Valve MSC40/50 / PVC Non-Return Valve 宮田工業所 名古屋工場、栃木工場、福岡工場、三重工場、名古屋営業所、宇都宮営業所、福岡営業所、本社
  2. Check valve C/CA/CH/CP/CPA series
  3. Achieving the world's smallest micro check valve structure. 日本マイクロMIMホールディングス 本社
  4. Performance comparison of dual plate check valves and swing check valves *Materials available upon request. アスタム
  5. 4 Check valve "duckbill valve" 東和化学 三木工場

non-return valve Product List

16～29 item / All 29 items

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Check valve "HCV series"

Check valve "HCV series"

The design temperature is -10 to 75℃! A compact high-pressure check valve suitable for small spaces is also available in the lineup.

The "HCV series" is used to prevent gas backflow. The maximum operating pressures available are 20MPa, 25MPa, and 30MPa. The design temperature is -10 to 75°C. Additionally, we also offer a compact-sized, small high-pressure check valve "CVR-15A・CVW-22P," which is suitable for limited spaces. 【Specifications】 ■ Maximum operating pressure: 20MPa, 25MPa, 30MPa ■ Design pressure: 21.6MPa, 25MPa, 32.4MPa ■ Pressure test pressure: 27MPa, 31.3MPa, 40.5MPa ■ Air-tightness test pressure: 23.8MPa, 27.5MPa, 35.7MPa ■ Design temperature: -10 to 75°C *For more details, please refer to the PDF document or feel free to contact us.

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Check valve "duckbill valve"

Check valve "duckbill valve"

Improved liquid natural drop function! Enhanced vacuum retention type with valve closure during pump suction.

The "Duckbill Valve" is a check valve characterized by its ability to respond sensitively to low-pressure environments while maintaining pressure, featuring a structure with two valve parts. By optimizing the shape and material, it addresses vacuum leaks at low pressure. The valve parts are assigned roles of self-supporting and following sides, particularly establishing opening retention during low pressure. 【Features】 ■ Responds sensitively to low-pressure environments while maintaining pressure ■ Structure of two valve parts ■ Addresses vacuum leaks at low pressure through optimization of shape and material ■ Assigns roles of self-supporting and following sides to the valve parts ■ Establishes opening retention, especially at low pressure *For more details, please refer to the PDF document or feel free to contact us.

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  • Other pumps

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Check valve (for low pressure) <W-P type/W-J type>

Check valve (for low pressure) <W-P type/W-J type>

We offer options that can be directly screwed into the main unit and those that can be installed in the middle of the piping!

We would like to introduce the "Check Valve (for Low Pressure)" <W-P type/W-J type> that we handle. It is installed in the piping between the oil feeder and the oil inlet to prevent back pressure to the oil feeder and to prevent damage to the oil feeder. There are two types available: one that screws directly into the main unit (W-P type) and one that is installed in the middle of the piping (W-J type). 【Features】 ■ Can withstand pressure up to 7.84 MPa *For more details, please refer to the related links or feel free to contact us.

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[Case Study] Medical Device Related

[Case Study] Medical Device Related

We are abundantly producing hemostatic valves, duckbill check valves, catheters, and more!

Various rubber components are used in medical devices. At Silicone Techno, we manufacture a wide range of products including hemostatic valves, duckbill check valves, catheters, and more. Do you have concerns about the slits in the valve parts sticking together over time? We recommend prototyping with silicone materials that prevent closure. [Case Study (Check Valve for Catheters)] ■ Material: Silicone Rubber ■ Specifications: Molding + Pure Cleaning ■ Applications - Duckbill type check valves serve as one-way valves in infusion circuits and various devices, allowing gas or liquid to be injected from one side while sealing against flow from the opposite direction. *For more details, please refer to the PDF document or feel free to contact us.

  • Rubber
  • Contract manufacturing
  • Other contract services

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[Proposal Example] Change of Supplier for Existing Products

[Proposal Example] Change of Supplier for Existing Products

Cost reduction of approximately 7.0 yen per unit, saving 3.5 million yen per year with an annual production of 500,000 units, contributing to stable supply of parts!

We would like to introduce a case that our company proposed. With the increase in demand for water-related components (check valves), production volume is transitioning from 15,000 units per month to 30,000 units per month. However, there was a challenge of supply shortages due to insufficient production capacity. Therefore, we proposed a method of sourcing stainless steel valve-type products that have been manufactured by another company for the past ten years and assembling them in-house. By changing the sourced products to those from an automotive parts manufacturing company, we improved quality and reduced costs. Additionally, we created a simple assembly machine to enable in-house assembly. As a result, we achieved a cost reduction of approximately 7.0 yen per unit, saving 500,000 units annually, which amounts to a reduction of 3.5 million yen per year, contributing to a stable supply of components. *For more details, please refer to the PDF document or feel free to contact us.

  • Other services
  • Processing Contract

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Performance comparison of dual plate check valves and swing check valves *Materials available upon request.

Performance comparison of dual plate check valves and swing check valves *Materials available upon request.

A check valve that is very suitable for installation in places where sufficient piping space cannot be secured!

Our Super Check (dual plate check valve) has a very simple product structure, resulting in a much shorter face-to-face length and lighter weight compared to other types of check valves. Therefore, it is very suitable for installation in places where sufficient piping space cannot be secured. This document includes a performance comparison between dual plate check valves and swing check valves. Please download and take a look. [Contents] ■ Performance comparison between dual plate check valves and swing check valves ■ Comparison of JIS 10K cast iron valves ■ Face-to-face comparison diagram of dual plate and swing check valves *For more details, please refer to the PDF document or feel free to contact us.

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[Delivery Example] Check valve with grooved flange surface.

[Delivery Example] Check valve with grooved flange surface.

Can be used with refrigerant piping flanges! *Materials with examples are currently being provided.

Our company has extensive experience with refrigerants (such as ammonia and fluorocarbons) for manufacturers of refrigeration equipment. In some cases, we receive requests to use refrigerant pipe flanges (JIS B8602) on the opposing flange, and we have numerous examples of responding by machining grooves on the flange surface of check valves. This document includes information on "Refrigerant Pipe Flange Compatibility" and "Case Studies." Please feel free to download and review it. Additionally, we also provide compatibility for flanges used in vacuum devices on vacuum lines for vacuum pumps. *For more details, please refer to the PDF document or feel free to contact us.

  • Piping Materials

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Dual Plate Check Valve "Super Check"

Dual Plate Check Valve "Super Check"

Pursuing short delivery times, we can ship as quickly as the next day. With a simple structure, maintenance is easy.

The "Super Check" is a check valve consisting of two semicircular disc-shaped bodies attached to a valve box by a single hinge pin along with a spring (JIS B 0100). When fluid flow occurs, each disc opens fully to the stop pin around the hinge pin. Additionally, when the flow from upstream stops, the discs close due to the spring force and seat on the valve box seat to stop the flow. 【Features】 - Compact dimensions for easy installation and removal in piping - Lightweight, contributing to reduced burden on operators - Simple structure for easy maintenance - A wide variety of material combinations for the valve box, disc, and other parts - Cylindrical valve box design suitable for high pressure structurally *For more details, please refer to the documentation. Feel free to contact us with any inquiries.

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Check valve "Nobal"

Check valve "Nobal"

A simple structure with only two nuts made of stainless steel for the cone and diaphragm!

"Nobal" is a check valve that breaks the common understanding of check valves in terms of structure and operating principles, and it is equipped with many excellent features. In addition to the outstanding functions of a typical check valve, it is also a suitable foot valve that pursues perfect no-leak performance. Furthermore, it has few failures and requires little maintenance. 【Features】 ■ Pursuit of perfect no-leak performance ■ Very quiet operating sound ■ No hammering occurs ■ Lightweight, compact, and easy to install ■ Free installation direction, etc. *For more details, please download the PDF or contact us.

  • Other work tools

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Yoshitake check valve air out

Yoshitake check valve air out

Can be used for both horizontal and vertical piping.

Introducing the "Yoshitake Check Valve Air Out" that we handle. 【Features】 Inline type stainless steel check valve Installation can be done in either horizontal or vertical orientation Effectively prevents water hammer 【Product Numbers】 SCV-2-15 SCV-2-20 SCV-2-25 *Currently available for sale on "Plant Navi," a wholesale and purchasing site exclusively for businesses dealing in plant piping materials and residential equipment operated by Hasegawa Kizai Co., Ltd.

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Check valve, mixing valve, strainer Group RSG

Check valve, mixing valve, strainer Group RSG

A group of advanced fluid valves that are standardly adopted by major German equipment manufacturers.

【Features】 ○ Y-type check valve suitable for medium pressure range ○ Strainer suitable for medium pressure range ○ Wide variety of options ○ Ideal for food machinery ○ Selection of brass and SUS materials available 【Specifications】 Type: Check valve Orifice: 15–50A Diameter: G1/2–50A Fluid: Non-corrosive gases and liquids Operating pressure: 0–4 MPa Cv value: 5–56 Power consumption: 6–15W Body material: Brass and SUS materials ◎ For more details, please contact us or refer to the catalog.

  • Special Processing Machinery

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[Delivery Example] Special Response for Dual Plate Check Valve

[Delivery Example] Special Response for Dual Plate Check Valve

Our skilled team of engineers will carefully manufacture check valves tailored to your specifications, considering the material, size, shape, valve box, and strength of the valve body.

Introduction of special cases for dual plate check valves. A check valve (non-return valve) is a valve installed downstream of pressure-generating devices such as pumps to prevent backflow. The valve body opens due to fluid pressure or flow rate, and closes due to a decrease in pressure or flow rate, preventing backflow through spring torque. [Contents (excerpt)] ■ Maximum nominal diameter 1350A Delivered a stainless steel valve with a nominal diameter of 1350A to a seawater desalination plant in the Middle East. * It is also possible to manufacture valves with a nominal diameter of 1350A or larger. Please contact us for details. ■ Maximum nominal pressure 620K (design pressure 63MPa) special flange Designed and delivered products in accordance with the flange standards specified by a domestic steel company from scratch. Additionally, bolts, nuts, and flanges were also designed, manufactured, and delivered by our company. * For more details, please refer to the PDF document or feel free to contact us.

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T-LBV Check Valve Screw-in

T-LBV Check Valve Screw-in

Disk-type check valve with high sealing performance and reliability.

This is an introduction to the "TLV Check Valve, Threaded" that we handle. 【Features】 It has high sealing performance and is a reliable disc-type check valve. It is suitable for piping where backflow prevention using steam is required. There are no restrictions on the installation direction, allowing for installation from any direction. 【Product Numbers】 TLV CK3M15 TLV CK3M20 TLV CK3M25 TLV CK3M32 TLV CK3M40 TLV CK3M50 *Currently available for sale on "Plant Navi," a wholesale and procurement site exclusively for businesses dealing with plant piping materials and residential equipment operated by Hasegawa Kizai Co., Ltd.

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